When cross line alignment is processing under night vision, it is a good solution to use Berlinlasers 808nm infrared crosshair laser module. It projects invisible infrared laser beam directly from 808nm infrared laser diode. It is only operating as an accessory part, after correct selection of 5V, 9V 1000mA DC power supply, this infrared cross laser assures intense and powerful infrared laser beam emission from 808nm infrared laser diode within 5mW to 400mW, achieving quite satisfied cross line alignment in distance. Selecting qualified glass coated lens with 10, 15 and 110 degree, 808nm infrared crosshair laser module keeps work with high linear quality beam emission and two perpendicular infrared lines with accurate 90 degrees. It enables quite easy installation and adjustment of both laser beam focus and cross line fineness, thus achieving high precision and quick response IR cross line indication perfectly. Technical data: Item: Berlinlasers 808nm infrared crosshair laser module Output power: 5mW-400mW Laser class: IIIa, IIIb Fan angles: 10, 15 and 110 degree glass coated lens Adjustable focus: yes Power source: 5V, 9V 1000mA DC power supply Applications: laser medical therapy, military targeting, surveillance and intelligence system etc http://www.berlinlasers.com/808nm-infrared-crosshair-laser-module